Pattern mechanism for looms.



A. A. GORDON, JR.

PATTERN MECHANISM FOR LOOMS.

APPLICATIONTILED JULY 23. 1914.

1,142,161. Patented June 8, 1915.

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A. A. GORDON, JR. PATTERN MECHANISM FOR LOOMS. APPLICATION FILED JULY 23.1914.

Patented June 8, 1915.

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111E res ALBERT A. GORDON, JR., 013 WORCESTER, MASSACHUSETTS, ASSIGNOR TO GROMPTON & KNOWLES LOOM WORKS, A CORPORATION OF IVIASSACHUSETTS.

PATTERN MECHANISM FOR LOOMS.

' Application filed July 23, 1914.

To all whom it may concern Be it known that I, ALBERT A. GORDON, Jr., a citizen of the United States, residing at Worcester, in the county of Worcester and State of Massachusetts, have invented a new and useful Pattern Mechanism for Looms, of which the following is a specification.

This invention relates to a pattern mechanism for looms and particularly to that class of looms in which a drop-box pattern-chain mechanism controls the shifting of the shuttle boxes, and in which one or more auxiliary pattern-chain mechanisms provide for the repetition of the combinations covered by selected bars of the drop-box patternchain. Such a pattern mechanism is shown in United States Patent No. 699104 issued to A. S. Cowan, April 29, 1902, my present invention being inthe nature of an improvement upon the Cowan construction.

In weaving certain classes of goods, 2. simple sequence of box changes must be successively repeated for a considerable number of times.- The usual multiplier mechanism above mentioned is effective to repeat a single combination only, and even the most simple sequence of changes necessitates adding a bar to the pattern-chain for each change and for each repetition thereof.

It is the object of my invention to provide auxiliary means for repeating a simple sequence of box changes without the addition of bars to the drop-box pattern-chain.

With this object in view, my invention contemplates the provision of cam-actuated auxiliary devices operable upon the dropbox mechanism and the further provision of suitable means for controlling the operation of the cam-actuated devices. In the embodiment of my invention herein disclosed, this provision includes a yoke controlled by a lever positioned for actuation by supplementary rolls upon the drop-box pattern-chain. These rolls are so disposed, with reference to the rolls which control the multiplier pattern mechanism, that the dropbox pattern-chain will remain stationary during the operation of the auxiliary devices, the duration of said operation being Specification of Letters Patent.

Patented June 8, 1915.

Serial No. 852,598.

determined by the multiplier mechanism in the usual manner.

A preferred form of my invention is shown in the drawings in which,

Figure 1 is a top plan view of a patternchain mechanism with my device applied thereto; Fig. 2 is a side elevation of certain of the parts shown in Fig. 1, the view being taken substantially upon the line 22 in Fig. 1; Fig. 3 is a similar elevation taken along the line 33 in Fig. 1; and Fig. 4 is a detail view looking in the direction of the arrow 4 in Fig. 1.

The pattern mechanism shown in the drawings is mounted upon a frame 10 in which are provided bearings for three parallel shafts 11, 12 and 13. The shaft 11 is connected by a clutch (not shown) with any suitable driving means. The three shafts 11, 12 and 13 are provided with intermeshing gears 14, 15 and 16 through which the shafts are rotated in unison. A fourth shaft 17 is axially alined with the shaft 11 and is connected with the shaft 12 by direct and reverse gearing shown at the top of Fig. 1. A clutch is provided for connecting either set of gears to the shaft 17, the mechanism.

for operating this clutch being fully shown and described in United States Patent No. 620861 issued March 7, 1899 to William Wattie. The shaft 17 carries an intermittent worm 18 which actuates a dobby pattern-chain mechanism (not shown).

The drop-box pattern-chain 20 is mounted upon a sleeve 21 rotatable on a shaft 22 (Figs. 2 and 3). A star Wheel 23 is secured to the sleeve 21 in position to be actuated by a pin wheel 24 rotatable with, and slidable upon, a sleeve 25 secured to the shaft 13. A second sleeve 30 is loosely mounted on the shaft 22' and carries a multiplier patternchain 31 and a star wheel 32 adapted to be actuated by a pin 33 in the pin wheel 34. The pin wheel 34 is rotatable with the sleeve 25 and is also longitudinally movable thereon. A sleet e 40 is loosely rotatable uponthe shaft 12 and carries a multiplier chain 41 and a star wheel 42 positioned for actuation by a pin 43 upon the pin wheel 34.

. The devices for determining the position of the sliding pin wheels 24 and 341, thus controlling the actuation of the several pattern mechanisms, are'fully described in the patent to Cowa'n above mentioned, to which reference may be made for a more complete description. For the purposes of this application, it need only bestated that the operations of the multiplier pattern-chains 31 and 41 are controlled by a lever 44 positioned for actuation by a set of rolls upon the drop-box pattern-chain-; 20.; A- large roll upon the chain causes the pattern-chain ,1 to be placed in operation, a small roll renders them both inoperative, and a'tube upon the chain causes the actuation of the'pattern chain 31' throu h connections not shown. The drop bo'x indicating lever's are shown at 5'0 and are connectedby lifterrods 51 to control the shift ing 'o'f'the shuttle boxes.

All'of the mechanism thus far described forms no part of my invention and is fully shown in the patents to which reference hascain-shaft 55' is mounted in bearings supported by the frame 10 and has secured thereto a plurality of cams 56' and a star 40' wheel The cams 56 are shown in the drawings as having three lobes, but the shape of these cams may be varied to suit the particular sequence desired. These cams may also be secured to the shaft in such a manner as to permit their relative adjustment. 7 I V v For the actuation of the star wheel 57 a in wheel 58' is loosely mounted upon the shaft 12', being rotatable therewith but 1ongitudin ally' movable thereon. A spring 59 encircles the shaft 12 and't ends to move the p'in'wheel 58 into inoperative position relatively to the starwheel. The pin wheel 58 has a projecting hub provided with an annular groove 60 adapted to receive the forked end 61 off a lever 62 fixed to a short horiiontal shaft 63. Theflsha'ft 63 is supported in a bearing 64 secured to the frame 10 and is provided at its opposite end with an arm 65 having its end positioned above the outer ends of the bars in the drop-box pattern-chain 20. one or more half-rolls 66 nese areq? to t'he pattern-chain 20 in posit tion tc' hft' the arm: 65', thus moving the lever 62 to the right, as seen at Fig. 4, and bringing the pin wheel 58 into position to intermittently rotate the star wheel 57 The arm 65 is positioned directly above one of the driving sprockets formed integrally with the sleeve 21 and the rolls 66 are cut away, as shown in Fig. 2, to permit them to rest between adjacent teeth of the driving sprocket.

The rolls which control the position of the lever 1 1, which determines the operation of the multiplier chains 31 and 4:1, are'so positioned with reference to the half-rolls 66 that one or the other of the multiplier chains will be started when the pin wheel 58 is moved to operative position, the drop-box pattern-chain remaining stationary as usual during the operation of the multiplier chain. sequence of shuttle box changes can therefore be controlled by either one of the multiplier chains, and during the operation of the auxiliary mechanism the drop-box pattern-chain will remain stationary. The cams 56 are so adjusted, relatively, that a loW point on each cam will be positioned under each lever 53 whenever the operation of the auxiliary mechanism is suspended. The cams 56 may take the form of pattern chains and rolls under special conditions.

Having thus described my invention, it will be evident that many changes and modificatio'ns can be made therein by those skilled in the art without departing from thespirit and scope of my invention as set forth the claims, and I do not wish to be limited to the details herein disclosed but What I claim is 1. pattern mechanism for looms having in combination a plurality of drop-box indicating-levers, a pattern-chain for moving said levers, auxiliary cams for moving the parts connected to certain of said'levers, a camshaft on which the auxiliary cams are fixed, a continuously rotated gear, connections from said gear to said cam shaft, including a slidable driving member, and a pattern chain, for determining the position of said member. I I

2'. A pattern mechanism for looms having in combination a plurality of drop-box indicating-levers, a pattern-chain for moving said levers, auxiliary cams for moving the parts connected to certain of said levers, a cam shaft on which the auxiliary cams are fixed, means-to rotate said shaft intermittently, and a pattern controlled device for placing said last named means in operation, the feeding of the drop-box pattern-chain being suspendedduring the operation of the auxiliary cams. v

3. A pattern mechanism for looms having incoinbination. aplurality of drop box indicating-levers; a pattern-chain for moving The number of repetitions of the said levers, lifter rods supported on said In testimony whereof I have hereunto set levers, projections longitudinally adjustable my hand, in the presence of two subscribing on certain of said rods, auxiliary levers 00- witnesses.

operating with said projections, cams for ALBERT A. GORDON, JR. lifting said auxiliary levers, and auxiliary Witnesses:

pattern mechanism for-controlling the rota- CHAS. T. HAWLEY,

tion of said cams. J. B. SYME.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

